Clarinet mouthpiece with reed and truck: what they have in common

1. Step 1. Clarinet mouthpiece with reed — is part of — Clarinet. The reed vibrates in the airflow.
2. Step 2. Clarinet — uses — Resonance. Resonance.
3. Step 3. Resonance — is used in — Violin. Resonance of the body.
4. Step 4. Violin — uses — Friction. The bow sets the string vibrating by stick-slip friction.
5. Step 5. Friction — is used in — Air brake. Brake shoes slow the wheels through friction.
6. Step 6. Air brake — is part of — Truck. Air brakes, as on trains.

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